Enhanced visible-light-driven photocatalysis of ibuprofen by NH2 modified MIL-53(Fe) graphene aerogel: Performance, mechanism, pathway and toxicity assessment

IF 5.4 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-07-17 DOI:10.1016/j.colsurfa.2025.137769

Jinming Yang , Shaohua Guo , Huiqing Dong , Yanke Liu , Jinliang Wang , Guixiang Quan , Xiaodong Zhang , Jianqiu Lei , Ning Liu

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引用次数: 0

Abstract

This study reported a three-dimensional NH₂-modified MIL-53(Fe)/graphene aerogel composite (GMAN) to enhance the photocatalytic degradation of ibuprofen (IBP) in the presence of persulfate (PS). GMAN-1 achieved nearly complete IBP degradation within 20 min under visible light with PS. The enhanced catalytic activity originated from the narrower band gap, higher transformation of photogenerated electron-hole pairs and higher BET surface areas of GMAN-1 compared with MIL-53(Fe)-NH₂ and graphene aerogel. Radical quenching experiments coupled with electron paramagnetic resonance spectroscopy demonstrated that ·OH and SO₄^·- were the primary reactive species during the IBP degradation. The optimized GMAN structure effectively suppressed iron ion leaching (<0.31 %) and had good repeatability and stability for IBP degradation. Finally, IBP degradation pathways were proposed, toxicity assessment revealed the reduced ecological risks of IBP degradation intermediates. This work provided a rational design for robust MOF composites in sustainable water purification.

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NH2修饰MIL-53（Fe）石墨烯气凝胶增强布洛芬的可见光催化性能、机制、途径及毒性评价

本研究报道了一种三维nh2修饰MIL-53(Fe)/石墨烯气凝胶复合材料（GMAN）在过硫酸盐（PS）存在下增强布洛芬（IBP）的光催化降解。与MIL-53(Fe)-NH2和石墨烯气凝胶相比，GMAN-1具有更窄的带隙、更高的光电子-空穴对转化率和更高的BET表面积，因此在可见光下，GMAN-1在20 min内几乎完全降解了IBP。自由基猝灭实验结合电子顺磁共振谱分析表明，·OH和SO4·-是IBP降解过程中的主要反应物质。优化后的GMAN结构有效抑制了铁离子浸出（<0.31 %），对IBP的降解具有良好的重复性和稳定性。最后提出了IBP的降解途径，毒性评价显示IBP降解中间体的生态风险较低。该工作为可持续水净化中坚固耐用的MOF复合材料的合理设计提供了依据。

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.